Bontrager Node Questions

I picked up a Bontrager Node 1.1 and a Bontrager Speedtrap yesterday. How do I zero out the data mid ride? Say I ride solo to a group ride and want to start with all counters at zero once the group ride starts. I can't find the reset or start over function. Also, is there a way to retrieve the data later from the first ride once the data has been reset?

One more…the Speedtrap sensor did not come with a spoke mounted magnet. My LBS threw in a Cateye spoke magnet, but I was curious if Bontrager normally includes the magnet with the sensor?